Each part has a specific function. Before we discuss the control unit and the arithmetic/logic unit in detail, we need to consider data storage and its relationship to the central processing unit. Computers use two types of storage: Primary storage and secondary storage.
With a worldwide box-office gross of over $2.7 billion, Avatar is often proclaimed to be the highest-grossing film, but such claims usually refer to theatrical revenues only and do not take into account home video and television income, which can form a significant portion of a film's earnings.
Which film is Gone with the Wind's nearest rival depends on the set of figures used: Guinness have Avatar in second place with $3 billion, while other estimates see Titanic in the runner-up spot with first-run worldwide earnings of almost $2.9 billion at 2010 prices.